// Copyright (C) 2007-2021  CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
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// Lesser General Public License for more details.
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// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//  GEOM ARCHIMEDE : algorithm implementation
//  File   : Archimede_VolumeSection.hxx
//  Author : Nicolas REJNERI
//  Module : GEOM
//
#ifndef ARCHIMEDE_VOLUMESECTION_HXX
#define ARCHIMEDE_VOLUMESECTION_HXX

#include <gp_Pnt.hxx>
#include <gp_Dir.hxx>
#include <TopoDS_Shape.hxx>
#include <Geom_Plane.hxx>

#include <Geom_RectangularTrimmedSurface.hxx>

class VolumeSection{

public:
  // Constructeur effectuant le maillage de peau de la shape
  Standard_EXPORT VolumeSection(TopoDS_Shape , Standard_Real); 

  //Methode qui affecte � un point,les coordonn�es de centre de la boite englobante de la shape 
  Standard_EXPORT void CenterOfGravity();

  // Methode qui calcule le volume sous un plan Z = h
  Standard_EXPORT Standard_Real CalculateVolume(Standard_Real); 

  // Methode qui resout l'equation V(h)=constante
  Standard_EXPORT Standard_Real Archimede(Standard_Real , Standard_Real); 

  // Methode permettant de "setter" un plan afin de l'utiliser � l'interieur de la classe
  Standard_EXPORT void SetPlane(Handle (Geom_Plane));

  // Methode permettant de r�cup�rer la shape modifi�e � l'ext�rieur de la classe
  Standard_EXPORT TopoDS_Shape GetShape();

  // Methode effectuant la rotation du plan et de la shape
  Standard_EXPORT void MakeRotation(gp_Dir);

  // Methode effectuant la rotation inverse du plan et de la shape
  Standard_EXPORT Handle (Geom_RectangularTrimmedSurface) InvMakeRotation(gp_Dir,Handle(Geom_RectangularTrimmedSurface));

  // Methode permettant de d�couper le plan selon une projection de la Shape
  Standard_EXPORT Handle (Geom_RectangularTrimmedSurface) TrimSurf();

  // Methode permmettant de deplacer le plan jusqu'a la position donn�e par Archim�de
  Standard_EXPORT Handle (Geom_RectangularTrimmedSurface) AjustePlan(Handle(Geom_RectangularTrimmedSurface),Standard_Real,gp_Pnt);

  Standard_EXPORT void getZ( double& min, double& max);
  
private:
  
  TopoDS_Shape  myShape;
  Standard_Real Tolerance;
  gp_Pnt        InitPoint;
  Standard_Real Zmin,Zmax,Ymin,Ymax,Xmin,Xmax;
  Handle(Geom_Plane) myPlane;
  
  Standard_Real ElementaryVolume(gp_Pnt,gp_Pnt,gp_Pnt);
  gp_Pnt        Intersection(gp_Pnt,gp_Pnt,Standard_Real);
  
};
#endif
